Filename Extensions
If you are seeking information about file extensions, then you are in the right place at right time.

Details of extension .ad4

1 extension(s) and 0 alias(es) in our database

Below, you can find answers to the following questions:

  • What is the .ad4 file?
  • Which program can create the .ad4 file?
  • Where can you find a description of the .ad4 format?
  • What can convert .ad4 files to a different format?
  • Which MIME-type is associated with the .ad4 extension?
4-bit ADPCM Compressed Audio .ad4 file icon

4-bit ADPCM Compressed Audio

AD4 file is a 4-bit ADPCM Compressed Audio. Adaptive Differential Pulse Code Modulation (ADPCM) is a digital compression technique used mainly for speech compression in telecommunications.
Detailed description not available
Category: Audio files
Application: SoX
Program name: -
Mime-type: application/octet-stream
Magic bytes (HEX): -
Magic string (ASCII): -
Related extensions:
3-bit ADPCM Compressed Audio

Other types of files may also use the .ad4 file extension. If you have helpful information about .ad4 extension, write to us!

Is it possible that the filename extension is misspelled?

We found the following similar extensions in our database:

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The .ad4 filename extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

a4d (1), da4 (1), as4 (1), adt (1), ade (1), ac4 (1), qd4 (1), d4 (1), af4 (1), adr (1), ad (1)

Can't open a .ad4 file?

If you want to open a .ad4 file on your computer, you just need to have the appropriate program installed. If the .ad4 association isn't set correctly, you may receive the following error message:

Windows can't open this file:

File: example.ad4

To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select from a list of programs that are installed on your computer.

To change file associations:

  • Right-click a file with the extension whose association you want to change, and then click Open With.
  • In the Open With dialog box, click the program whith which you want the file to open, or click Browse to locate the program that you want.
  • Select the Always use the selected program to open this kind of file check box.

Supported operating systems

Windows Server 2003/2008/2012/2016, Windows 7, Windows 8, Windows 10, Linux, FreeBSD, NetBSD, OpenBSD, Mac OS X, iOS, Android

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